mirror of
https://github.com/outbackdingo/firezone.git
synced 2026-03-21 22:42:06 +00:00
1ebee00699
On a high level, `connlib` is a state machine that gets driven by a custom event-loop. For time-related actions, the state machine computes, when it would like to be woken next. The event-loop sets a timer for that value and emits this value when the timer fires. There is an edge-case where this may result in the time going backwards within the state machine. Specifically, if - for whatever reason - the state machine emits a time value that is in the past, the timer in the `Io` component will fire right away **but the `deadline` will point to the time in the past**. The only thing we are actually interested in is that the timer fires at all. Instead of passing back the deadline of the timer, we fetch the _current_ time and pass that back to the state machine as the current input. This ensures that we never jump back in time because Rust guarantees for calls to `Instant::now` to be monotonic. (https://doc.rust-lang.org/std/time/struct.Instant.html#:~:text=a%20measurement%20of%20a%20monotonically%20nondecreasing%20clock.)
Connlib
Firezone's connectivity library shared by all clients.
Building Connlib
You shouldn't need to build connlib directly; it's typically built as a dependency of one of the other Firezone components. See READMEs in those directories for relevant instructions.